【select】
<!DOCTYPE html>
<html>
<head>
<script type='text/javascript'>
window.onload=function(){
document.getElementById('el').options[1].setAttribute('selected','selected');
document.getElementById('f').reset();
}
</script>
</head>
<body>
<form id="f">
<select id="el">
<option value="one">One</option>
<option value="two">Two</option>
</select>
</form>
</body>
</html>
